Beat the Blerch

SEP
12
2026
Experience a flat out and back course through mossy evergreen forests along the Snoqualmie valley trail. Choose from four different distances starting at Tolt MacDonald Park in the town of Carnation.
Sat 12 Sep 2026
26 miles 13 miles 10 kilometers 3 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Event Overview

The Beat the Blerch running event takes place in Carnation, Washington, situated approximately 35 minutes outside of Seattle. This event features four different race distances:

  • 5K (3.1 miles)
  • 10K
  • Half Marathon (13.1 miles)
  • Marathon (26.2 miles)

Course Details

Participants run along the Snoqualmie valley trail, starting at King County's Tolt-MacDonald Park. The course is flat and follows an out-and-back format. The route passes through evergreen and mossy forests, providing a natural setting for the race. Near the starting area, there are local strawberry farms and pumpkin patches that provide guided tours.

The event was inspired by a comic about running created by The Oatmeal. Registration for the various distances is open to the public with staggered entry fees based on the selected distance. Visit the organization's website for the most recent information.

26 mi
Marathon
13 mi
Half Marathon
10 km
10k
3 mi

Events nearby

A 20th annual trail fundraiser at Carkeek Park offering 6 and 12 hour loop races on a 1.93 mile course with steep stairs and Puget Sound views.
A costumed community event at Lincoln Park featuring a trail 5K, kids dashes, and a virtual shirt option to support South Seattle College Cooperative Preschools. Registration includes a Monster Dash shirt and the 5K includes a timed bib.
Beginner-friendly 2.8 mile group trail run at King County's Cougar Mountain with Teva demo shoes, post-run refreshments, and a chance to win Trailpeak shoes.
Trail races at Cougar Mountain Regional Wildland Park near Seattle offering 5k, 7.6 mile, 19.5 mile and 50k courses through forested single track, rolling hills and marshes. Proceeds support King County Parks.
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